mirror of
https://github.com/Telecominfraproject/wlan-lanforge-scripts.git
synced 2025-11-02 19:58:03 +00:00
284 lines
9.7 KiB
Python
Executable File
284 lines
9.7 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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This is a small python webserver intended to run on a testing network resource
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where the lf_kinstall.pl script can post build machine information to. A useful
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place to install this script would be on an APU2 being used as a VPN gateway.
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Use these commands to install LaTeX and html2ps
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apt install perlmagick libwww-perl libhtml-parser-perl libpaper-utils ghostscript weblint-perl texlive-base postscript-viewer xhtml2ps html2ps
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Consider these commands to install printer drivers:
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Dymo LabelWriter-450:
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apt install printer-driver-dymo
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Brother QL-800:
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# apt install brother-cups-wrapper-common brother-cups-wrapper-extra brother-lpr-drivers-common brother-lpr-drivers-extra
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Download drivers here:
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https://support.brother.com/g/b/downloadtop.aspx?c=us&lang=en&prod=lpql800eus
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* download driver
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* install driver using
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$ sudo dpkg -i dymo*.dpkg
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Use these commands to install the script:
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$ sudo cp label-printer.py /usr/local/bin
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$ sudo chmod a+x /usr/local/bin/label-printer.py
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$ sudo cp label-printer.service /lib/systemd/system
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$ sudo systemctl add-wants multi-user.target label-printer.service
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$ sudo systemctl daemon-reload
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$ sudo systemctl restart label-printer.service
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At this point, if you use `ss -ntlp` you should see this script listening on port 8082.
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If you are running ufw on your label-printer host, please use this command to allow
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traffice to port 8082:
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$ sudo ufw allow 8082/tcp
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$ sudo ufw reload
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Using kinstall to print labels:
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Dymo LabelWriter:
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$ ./lf_kinstall.pl --print-label http://192.168.9.1:8082/ --printer LabelWriter-450
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Brother QL-800:
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$ ./lf_kinstall.pl --print-label http://192.168.9.1:8082/ --printer QL800
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"""
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import os
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import logging
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import math
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from datetime import datetime
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from http import server
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from http.server import HTTPServer, BaseHTTPRequestHandler
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from ssl import wrap_socket
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from urllib.parse import urlparse, parse_qs
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import pprint
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from pprint import pprint
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class LabelPrinterRequestHandler(BaseHTTPRequestHandler):
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def do_HEAD(self):
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self.send_response(200);
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self.send_header("Content-type", "text/html")
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self.end_headers()
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def do_GET(self):
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self.send_response(200);
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self.send_header("Content-type", "text/html")
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self.end_headers()
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def popstr(self, param):
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#print ("""TYPE : "%s" """%type(param))
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#print ("""TYPE0: "%s" """%type(param[0]))
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if type(param) is list:
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#print("""LIST: "%s", """%param[0])
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return str(param[0])
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return str(param)
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def do_POST(self):
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html_filename = "/tmp/label.html"
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printer = ""
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hostname = "";
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mac_address = "";
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model = "";
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serial = "";
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length = int(self.headers['Content-Length'])
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field_data = self.rfile.read(length).decode("utf-8")
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print("Field_data: %s\n"%field_data);
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fields = parse_qs(field_data)
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#pprint(fields)
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#for name in fields:
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# print("""key %s: "%s" %s""" % (name, self.popstr(fields[name]), type(fields[name])))
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if "printer" in fields:
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printer = self.popstr(fields["printer"])
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if (printer is None) or ("" == printer):
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err_msg = "printer empty or unset"
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self.send_resonse(400)
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self.send_header("X-Error", err_msg)
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self.end_headers()
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self.wfile.write(b"<html><body><li> %s\n"%err_msg)
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return
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else:
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err_msg = "printer not submitted"
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self.send_response(400)
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self.send_header("X-Error", err_msg)
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self.end_headers();
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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if "mac" in fields:
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mac_address = self.popstr(fields["mac"])
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if (mac_address is None) or ("" == mac_address):
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err_msg = "mac address empty or unset"
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self.send_resonse(400)
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self.send_header("X-Error", err_msg)
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self.end_headers()
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self.wfile.write(b"<html><body><li> %s\n"%err_msg)
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return
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else:
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err_msg = "mac address not submitted"
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self.send_response(400)
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self.send_header("X-Error", err_msg)
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self.end_headers();
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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if "model" in fields:
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model = self.popstr(fields["model"])
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if (model is None) or (model == ""):
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err_msg = "model name not submitted"
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self.send_reponse(400)
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self.send_header("X-Error", err_msg)
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self.end_headers()
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self.wfile.write(b"<html><body><li> %s\n"%err_msg)
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return
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else:
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err_msg = "model name not submitted"
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self.send_response(400)
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self.send_header("X-Error", err_msg)
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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if "hostname" in fields:
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hostname = self.popstr(fields["hostname"])
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else:
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suffix = mac_address[-5:].replace(":", "")
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hostname = "%s-%s"%(model, suffix)
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if "serial" in fields:
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serial = self.popstr(fields["serial"])
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else:
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serial = hostname
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now = datetime.now()
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datestr = now.strftime("%Y-%m")
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self.send_response(200);
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self.send_header("Content-type", "text/html")
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self.end_headers()
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label_html = self.html_template(model_=model, mac_=mac_address, hostname_=hostname, serial_=serial, datestr_=datestr)
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if os.path.exists(html_filename):
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try:
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os.remove(html_filename)
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except:
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err_msg = "unable to remove html file"
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self.send_response(400)
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self.send_header("X-Error", err_msg)
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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try:
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file = open(html_filename, "w")
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file.write(label_html)
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file.close()
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except:
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err_msg = "unable to write html file"
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self.send_response(400)
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self.send_header("X-Error", err_msg)
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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self.print_pdf(printer=printer, html=html_filename)
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self.wfile.write(b"<html><body>Success\n")
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def html_template(self, model_="unset", mac_="unset", hostname_="unset", serial_="unset", datestr_="unset"):
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template = """<html><head></head><body style='margin:0;padding:0;'>
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<table border='1' cellpadding='2' cellspacing='0' height="90" style="margin:0;padding:0;float:left;clear:none;">
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<tr>
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<td width="1in" style="font-size: 5pt;">Model:</td>
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<td width="2in" style="font-family: 'Courier New',Courier; font-size: 8pt;"><b><tt>%s</tt></b> <small>(%s)</small></td>
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</tr>
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<tr>
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<td style="font-size: 5pt;">MAC:</td>
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<td style="font-family: 'Courier New',Courier; font-size: 8pt;"><b><tt>%s</tt></b></td>
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<tr>
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<td style="font-size: 5pt;">Hostname:</td>
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<td style="font-family: 'Courier New',Courier; font-size: 8pt;"><b><tt>%s</tt></b></td>
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<tr>
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<td style="font-size: 5pt;">Serial:</td>
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<td style="font-family: 'Courier New',Courier; font-size: 8pt;"><b><tt>#%s</tt></b></td>
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</tr>
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</table></body></html>""" % (model_, datestr_, mac_, hostname_, serial_)
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return template
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def print_pdf(self, printer, html ):
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"""
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:param printer:
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:param html:
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:return:
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"""
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""" Below is shell script that worked:
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w_inches="3.45"
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h_inches="1.125"
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w_points=`echo "scale=0; ($w_inches * 72)/1" | bc -l`
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w_px=`echo "scale=0; ($w_inches * 720)/1" | bc -l`
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h_points=`echo "scale=0; ($h_inches * 72)/1" | bc -l`
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h_px=`echo "scale=0; ($h_inches * 720)/1" | bc -l`
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echo "Page size in Points: $w_points x $h_points"
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echo "Page size in pixels: $w_px x $h_px"
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rm -f label.pdf
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set -x
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html2ps -L label.html \
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| gs -o label.pdf \
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-g${h_px}x${w_px} \
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-sDEVICE=pdfwrite \
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-dFIXEDMEDIA \
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-dPDFFitPage \
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-dFitPage \
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-c '<</PageOffset [-80 -44]>> setpagedevice' \
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-f -
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"""
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w_inches = 3.45
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h_inches = 1.125
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w_points = math.floor(w_inches * 72)
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w_px = math.floor(w_inches * 720)
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h_points = math.floor(h_inches * 72)
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h_px = math.floor(h_inches * 720)
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pdf_file = "/tmp/label.pdf"
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pageoffset = "<</PageOffset [-80 -44]>> setpagedevice"
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geometry = "-g{}x{}".format(h_px, w_px)
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if os.path.exists(pdf_file):
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try:
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os.remove(pdf_file)
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except:
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err_msg = "unable to remove html file"
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self.send_response(400)
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self.send_header("X-Error", err_msg)
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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cmd = """html2ps -L "%s" | gs -o "%s" %s -sDEVICE=pdfwrite -dFIXEDMEDIA -dPDFFitPage -dFitPage -c '%s' -f -""" \
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% (html, pdf_file, geometry, pageoffset)
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print("CMD: "+cmd)
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try:
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os.system(cmd)
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os.system("""lp -d "%s" -- "%s" """%(printer, pdf_file))
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except:
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err_msg = "trouble printing pdf"
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self.send_response(500)
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self.send_header("X-Error", err_msg)
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self.wfile.write(b"<html><body><li>%s\n" % err_msg);
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return
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def __main__():
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logging.info("Main Method. Creating CGI Handler")
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httpd = HTTPServer(('', 8082), LabelPrinterRequestHandler)
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print("Starting LabelPrinter service...")
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httpd.serve_forever()
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if __name__ == "__main__":
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__main__()
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